Question

f) ( x - 1 ) x ( x - 2 ) = 0

( Giúp tớ với, đang gấp. Cảm ơn! <33 )

Answer 1

f) \(\left(x-1\right)\left(x-2\right)=0\)

\(\Rightarrow\left[{}\begin{matrix}x-1=0\\x-2=0\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=1\\x=2\end{matrix}\right.\)

Vậy: \(S=\left\{1;2\right\}\)